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The prevention of lower extremity physical activity injuries: a school-based randomised controlled trial in children aged 10 - 12 years
ISRCTN ISRCTN78846684
ClinicalTrials.gov identifier
Public title The prevention of lower extremity physical activity injuries: a school-based randomised controlled trial in children aged 10 - 12 years
Scientific title
Acronym iPlay
Serial number at source NTR580
Study hypothesis The promotion of safe sports participation proves effective in a physical education setting, resulting in a reduction of lower extremity injuries in children.

Please note that as of 19/12/2008 the anticipated start and end dates in this record were amended. The previous dates are as follows:
Initial anticipated start date: 01/10/2005
Initial anticipated end date: 01/10/2008
Lay summary Not provided at time of registration
Ethics approval The Medical Ethics Committee of Vrije University Medical Centre approved the study design, protocols and informed consent procedures on 6th July 2006
Study design Randomised active controlled parallel group trial
Countries of recruitment Netherlands
Disease/condition/study domain No condition, healthy person
Participants - inclusion criteria Primary schools: boys and girls aged 10 - 12 years.
Participants - exclusion criteria Does not comply with the above inclusion criteria
Anticipated start date 01/09/2006
Anticipated end date 30/07/2007
Status of trial Completed
Patient information material
Target number of participants 2280
Interventions The study will be carried out during one school year in primary schools, reaching boys and girls aged 10 - 12 years (7th and 8th grade). Schools will serve as randomisation units to avoid spill-over of the intervention within schools and to enhance control over intervention adherence and compliance.

The injury prevention programme aimed at lower extremity injuries in children aged 10 - 12 years was constructed based on an intervention mapping protocol. In general the injury prevention programme focuses on injury prevention in general and focuses on injury awareness, physical fitness and coordination (motor control). In addition the programme focuses on soccer, tennis, basketball, inline skating and snowboarding. These are the most commonly practiced activities in this age group. The injury prevention programme will be given by the children's teachers as a 9 month course.
Primary outcome measure(s) 1. Incidence of lower extremity injuries
2. Costs associated with lower extremity injuries

Primary and secondary outcomes measured September/October 2006 and June/July 2007.
Secondary outcome measure(s) Change in attitudes and behaviour with regards to injury and injury prevention. Primary and secondary outcomes measured September/October 2006 and June/July 2007.
Sources of funding The Netherlands Organisation for Health Research and Development (ZonMw) (The Netherlands)
Trial website
Publications 1. 2010 results in http://www.ncbi.nlm.nih.gov/pubmed/21092316
Contact name Dr  D.M.  Collard
  Address VU University Medical Center
EMGO-Institute
Van der Boechorststraat 7
  City/town Amsterdam
  Zip/Postcode 1081 BT
  Country Netherlands
  Email dorine.collard@vumc.nl
Sponsor Vrije University Medical Centre (VUMC) (The Netherlands)
  Address EMGO Institute
Van der Boechorststraat 7
  City/town Amsterdam
  Zip/Postcode 1081 BT
  Country Netherlands
  Tel +31 (0)20 444 8180
  Fax +31 (0)20 444 8181
  Email emgo@vumc.nl
  Sponsor website: http://www.vumc.nl/
Date applied 08/03/2006
Last edited 15/08/2011
Date ISRCTN assigned 08/03/2006
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